X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Futil%2FComparison.java;h=8902e2ce4433aa173361d2c36711af0afc0383c7;hb=5abaf9d49abf02d536fb657d33b3fcde91ddb42c;hp=dfc243de65dcb68fa566505b316fef84f336d5b6;hpb=7a16dc455ffdc4956013aaa4707cc79886b6969a;p=jalview.git

diff --git a/src/jalview/util/Comparison.java b/src/jalview/util/Comparison.java
index dfc243d..8902e2c 100644
--- a/src/jalview/util/Comparison.java
+++ b/src/jalview/util/Comparison.java
@@ -265,10 +265,13 @@ public class Comparison
     char[][] letters = new char[seqs.length][];
     for (int i = 0; i < seqs.length; i++)
     {
-      char[] sequence = seqs[i].getSequence();
-      if (sequence != null)
+      if (seqs[i] != null)
       {
-        letters[i] = sequence;
+        char[] sequence = seqs[i].getSequence();
+        if (sequence != null)
+        {
+          letters[i] = sequence;
+        }
       }
     }